#### Transcript of Chemistry - Moles!

**Chemistry - Moles!**

Watch the

first two videos

and answer these questions. YOU MUST COPY THE QUESTION DOWN AND USE THE TKA HEADING.

1. How many things in a mole? Use scientific notation to answer this.

2. Who discovered the unit of a mole?

3. How big would a mole of jellybeans be?

4. How much space does a mole of sulfur take up?

5. How much does 1 mole of sulfur atoms weigh?

6. Using the periodic table at the back of your text book, how much would 1 mole of copper weigh?

7. How much would 2 moles of copper weigh?

8. How much would 3 moles of oxygen weigh using the periodic table?

9. If 1 mole has 6.02 X 10^23 things, and I have 2 moles of things, how many things do I have?

10. How many marbles would I have if I had 3.4 moles of marbles?

Converting Grams to Moles and back again

Percent Composition

I need to point out that the first analyzed compound is not ethene, but butene - more specifically (E)-but-2-ene.

Empirical and Molecular Formulas

What are Empirical Formulas?

Example Calculations

Full transcript